Ponderosa MF – Spacious Backcountry Sleeping Bag

The Ponderosa MF is a spacious backcountry sleeping bag designed for campers who value room, comfort, and reliable warmth. With a wide semi-rectangular shape, it gives you the freedom to stretch, shift, or sprawl—all without sacrificing insulation.

This bag is perfect for car camping, glamping, cabin stays, or backcountry trips where comfort takes priority. It’s filled with premium 850+ fill power goose down, offering high-loft warmth that compresses easily. At just 2 lbs 11 oz, it stays light enough to carry without weighing down your kit.

The MicroLite XP™ shell adds durability and water resistance. It protects the down from condensation and damp conditions while maintaining breathability. Whether you’re tucked into a tent or sleeping under the stars, this bag keeps you warm and dry.

A full-length #5 YKK zipper makes entry, exit, and ventilation easy, while a secondary footbox zipper allows the Ponderosa to unzip completely and lie flat as a large down comforter—ideal for changing temperatures or shared sleeping setups.

Its size and versatility make it a top choice for side sleepers, restless campers, and anyone who dislikes the squeeze of a traditional mummy bag. If you’re used to turning over in your sleep or bundling up with extra layers, the Ponderosa makes it all feel natural.

Proudly made in the USA, the Ponderosa MF is Western Mountaineering’s answer to big comfort in the backcountry. It blends luxury and function for campers who want more space, more options, and more restful nights outdoors.

Features

Explanation

Filled with 850+ Fill Power ethically-sourced premium goose down Continuous baffles allow you to shift down for more insulation in colder weather Full-length #5 YKK zipper provides a smooth, easy unzipping experience while saving weight Durable 20 denier MicroLite XP™ outer shell stays more breathable and water resistant longer than traditional polyesters Dual zipper design allows sleeping bag to open completely for greater temperature regulation Pairs with Summer Coupler when fully opened to form a lightweight comforter Comes with ultralight stuff sack and breathable storage bag 2 lbs. 9 oz. Total Weight

Specifications

• US
• Metric

Shape	Semi Rec
Temp Rating	15°F
Fill	850+ Power Goose Down
Color	Navy Blue/Black
Country of Origin	USA
Fabric	20D Microfiber
Loft	6.5" in
Inside Girth shdr/hip/foot	6'0" 67"/64"/48" 6'6" 67"/64"/48" 7'0" 67"/64"/48"
Fill Weight	6'0" 27 oz 6'6" 29 oz 7'0" 31 oz
Total Weight	6'0" 2 lb 9 oz 6'6" 2 lb 11 oz 7'0" 2 lb 14 oz
Stuff Size	6'0" 8"x17" M 6'6" 8"x17" M 7'0" 8"x17" M

Shape	Semi Rec
Temp Rating	-9°C
Fill	850+ Power Goose Down
Color	Navy Blue/Black
Country of Origin	USA
Fabric	20D Microfiber
Loft	17 cm
Inside Girth shdr/hip/foot	180cm 170/163/122 cm 200cm 170/163/122 cm 215cm 170/163/122 cm
Fill Weight	180cm 765 g 200cm 820 g 215cm 875 g
Total Weight	180cm 1160 g 200cm 1220 g 215cm 1305 g
Stuff Size	180cm 20x43 cm M 200cm 20x43 cm M 215cm 20x43 cm M